Fluid-motor for pipe-organs



No. 6o9,|33. lPatenten Aug. la, |398.

. T. H. wYKE.

FLUID MOTOR FOR PIPE ORGANS.

( Application tiled. Sept. 20, 1897.)

llllllll an d cam/I.: Jn

A... n m

La C d C /C/d we ncRms frans co. Mofo-Urns.. wAsHmoroN. n, c.

` supply.

THOMAS HAND WYKE, OF BOSTON, MASSACHUSETTS.

FLUID-MOTOR FOR PIPE-ORGANS.

.SPECIFICATION forming part of Letters Patent No. 609,133, datedAugust 16, 1898. Application led September Z0, 1897- Serial No. 652,259. `(ll'ornodel.)

T0 all whom t 11mg/ concern,.-

Be it known that I, THOMAS HAND WYKE, of Boston, county of Suffolk, State of Massachusetts, have invented an Improvement in Fluid-Motors for Pipe-Organs, of which the following description, in connection with the accompanying drawings, is a speciiication, like letters on the drawings representing like parts.

My invention is-a motor particularly intended for operating the usual bellows of a pipe-organ, and having for its mainv object the provision of a noiseless andautomaticallyregulated motor, which may be attached to a usual head of water and may be readily accom.- modated to the particular pressure of water which the system of the city or village may A frequent disadvantage to the water-m otors used in connection with pipe-organs is that they pound-that is, that the movements are such that a disagreeable pounding noise ensues-and accordingly I have devised the hereinafterdescribed mechanism, whereby the motor is rendered practically noiseless.

A further improvement resides in proportioning the speed or pumping results of the motor to the amount of air used and required by the organ.

I also provide means to regulate the rapid-` ity of movement of the controlling device for the water-supply. l l

Various further advantages and details of improvement `will be pointed `out -in connection with the following 4 description of the mechanism shown in the accompanying drawings, whichillustrate a further embodiment ,of my invention.

In the drawings, Figure l is a vertical sectional view taken non the line 1 1, Figs. 2 and 3. Fig. 2 is a transverse vertical section taken on the line 2 2, Fig. l. Fig. 3 is atransverse horizontal section taken on the line 3 3, Fig.` 2. Fig. 4 is a sectional detail taken substantially on the same lines as Fig. 1, showing a modification.

On a suitable base or standardAismou nted a water-column B, within which is secured, preferably to an internal annular shoulder, by a threaded joint c, a cylinder O, provided with main ports c' at one end and similar ports c2 at its opposite end, slightly removed in both cases from the extreme` ends. Within. this cylinder I mount a piston D, herein shown as comprising flanged ends d ol', having packing dabetween them `and `the central flange or packing-ring. d3. This piston is carried by a piston-rod d?, which passes through a usual packing-gland b at the upper end of the watercolumn B, whereit isprovided with a head d5, to whicha pitman d6 is pivoted at di'. l The upper end ofthe pitman d is bifur- .cated in order to be pivotally bolted at d8 to the usual` pump-lever of the organ, it being understood that said lever may extend, as usual,`beyond the pumping-motor, if desired, in order to be operated either by the motor or by hand, according to circumstances.

The water (and it will be understood that steam or any other iluid may be used instead of water, if desired) is admitted at an inlet E and passes in the direction of the arrow, Fig. 2, into crown e of thevalve-chamber lE. In this valve-chamber I preferably mount a reciprocating `slide-valve e', having usual cut-off shoulders e2 e3 and being provided'with end closures e4 e5. Viewing Figs. 2 and 3, it `will be observedthat the latter are recessed at e6 in order to fit over projections e7 at either end of the valve-chamber in order to give a cushioning effect as the valve approaches the end of its reciprocating movement in either direction.

- `The valve described serves to open and alternately `connect the ports c10 c20'with an intermediate outlet e8, the port 010 connecting with the water-column, as indicated by dotted lines in Fig.4 l, so as to permit the flow of water to the portsc" and the ports 020, connecting with the upper ports c2.

'ViewingFigs l and 3, it willbe seen that I have providedpassages e9 elo at one side of the ,valve-chamber, connecting therewith respectively at the opposite ends thereof and with a central outiow-pipe e, in which I mount a controlling-valve cl2, shown in Figs. l and 3 as provided with openings cl3 @14, adapted to open the passage ew into'outlet e11 and close the opposite passage-way e9, or, vice versa, to close the passage elo and` open the passagevej". By this provision it will be Aunderstood that by simply turning the valve` or plug cl2 in the proper direction the valve-passage behind either end of the reciprocating IOO valve e may be exhausted, causing the valve e to move to that end of the chamber.

I prefer to admit water behind the valve ends e4 e5 by means of small ducts or perforations 615, Fig. 2, although it may be admitted in any other convenient way, as by a passage el, Fig. 4, opening from the crown e of the valve-chamber into a groove or annular recess @17 in the adjacent part of the valve cl2, in which case the latter is provided with two passages els to connect the water-supply from the inlet with the passage e9 or e10 when the other of said passages is connected with the outlet.

It will be evident that one opening @13 or @14 and one passage e18 instead of two would answer simply by giving the valve 612 sufficient rotation.

To rotate the valve cl2 as required, I have shown in the present embodiment of my invention a twisted blade F, rotatably mounted at f in an arm'h of a stand b2 and embraced by the bifurcated end (Z9 of the head d5, before mentioned, the lower end of blade F being connected to a stem @19 of the valve cl2. Viewing Figs. l and 4, it will be seen that the latter connection is a loose one by means of a pin f', extending through the plate F and projecting therefrom at opposite sides to engage opposite lugs e20 on an adjustable sleeve e, secured by a set-screw @22 to the stem 619, the object of this provision being to cause the required rotation of the valve cl2 just at the end of the stroke of the piston, as will be evident.

The head d5 slides in ways h3 in the stand b2, being reciprocated by and with the pistonrod d4, so that each reciprocation thereof rocks the blade F and similarly rotates the valve as required to exhaust the pressure from behind one end of the valve c and cause it to move, thereby cutting off the flow of Water from one end of the cylinder and piston and admitting it to the opposite end.

Preferably I provide the recesses e and projections e7, already mentioned, to cushion the valve e at the end of the stroke, and, referring to Fig. 1, it will be seen that I provide also a hand-plug c25, adjustable in and out, to control the outiiow of the water or other fluid from the outlet e, thereby regulating the exhaust caused thereby and preventing the pressure from slidingthe valve e too fast. By this means the movements of the valve e may be rendered as moderate as may be desired.

Another precaution and a main feature of my invention is a provision to prevent starting the strokes of the pumping-lever with too great rapidity, one means for accomplishing this being shown in Fig. l, where it will be observed that the ends of the cylinder C are not closed,l but have an opening or auxiliary port c3, shown as annular, being formed by the space between the ends of the cylinder and bosses extending from the respective ends of the Water-column, as clearly shown in Fig. 1, and that the iianged ends d d of the piston and the ports c c2 are so located that the former at the beginning of each stroke cover said ports, thereby preventing the full force of the water from reaching the piston, the latter being moved at first only by the water that gets through the adjacent opening c3. In practice this partV of my invention proves of great value and advantage, inasmuch as it gives an easy movement Without pounding or jerking.

G designates an automatic regulator for controlling the operation of the motor according to the amount of air being used and required by the organ, this regulator being herein shown as mounted in the main outlet II from the exhaust-outlet e8, although I in no wise restrict myself to this location thereof. This regulator is herein shown as a cut-0E or plunger g, acting to close or partially close the outlet-opening h, being freely reciprocable in a gland g by means of a lever g2, pivotally mounted at g3 on said gland.

The lever g2 is connected at its free end to the usual indicator customarily provided in pipe-organs for indicating the amount and pressure of air in the air-receiverof the organ, and which, being well known, I have omitted to illustrate, so that as the indicator rises it will operate to lower the lever g2 and slow down the pumping movement of the motor, and if the player ceases playing-it will entirely close the opening h and stop the motor.

The operation of my machine is as follows: It being understood that the pumping-lever ICO of the pipe-organ, connected to the bellows openings c3, thereby starting the piston I)` slowly until the latter has communicatedan initial starting movement to the pumping-le- IIO ver, by which time the flanged head el has moved from in front of the ports c', so that the latter will be opened andthe full force of the water-pressure is free to be exerted against the piston through the ports c', moving the piston with the desired velocity for an up stroke of the pumping-lever. l

The piston, having reached the upper end, closes the ports c2, and at the same time the upward movement through the connection of the head d5, carried at the upper end of the piston-rod d4 and engaging the twisted plate F, has rotated the latter, whose final movement rotates the rotary valve el?, so as to open the passage e9 to the outlet e and thereby permit the water which has been held behind the left-hand end of the valve e to iiow out, creating an exhaust at said left-hand end.

lever.

At .the same time the passage el@ is closed by= the same movement of the rotary valve cl2 which opened the opposite passage e9, and by -the closing of this passage 61 the water liowing through the right-hand duct @15, Fig. 2, or through the passage @16, Fig. 4E, as the case may be, behind the right-hand end of the -valve e is permitted to exert its pressure upon the valve e', whose opposite end has just been exhausted, and thereby readily shift the valve to the left, so as to cut off the port C10 and open the port 020;

The water-pressure now passes through the port C20 against the upper end d of the piston D through the contracted opening c3, thereby giving the initial movement of the return stroke with a gentle acceleration until the piston has moved sufficiently to uncover the ports c2, whereupon the full pressure of the head of water is exerted and the piston is driven to the opposite end of the cylinder, completing the second stroke of th-e pump- This second stroke brings the head d5 down along the twisted plate F, thereby reversing it from its last position into its original position and restoring at the end of its movement the rotary valve cl2, so as to permit the water-pressure through the lefthand duct e5, Fig. 2, or the passage el, Fig. 4, to be exerted at the left-hand end of the valve e', the opposite end being exhausted, as before, by the free flow of the water from behind it out of the passage el through the outlet ell, thus shifting the valve e to the right, so that the piston D will be again raised. This operation continues automat-` ically with a rapidity depending mainlyupon the freedom of outliow of the .water from ahead of the moving piston, this outflow being. governed by the regulator G, whose lever g2 is connected to the pressure-indicator ,j

of the organ, so that if the pump operates with such rapidity as to raise the pressure in the organ receiving-chamber above that to which the mechanism has been adjusted the indicator will of course rise, as usual, and will thereby, by means of this feature of my invention, lower the plunger g and check the outflow of the water from the motor, thereby retarding the action of the latter, slowing down its pumpingaction.

On the other hand, if the piston does not move rapidly enough to maintain the normal amount of air-pressure in the receiver of the organ the indicator thereof will be below the normal and will thereby raise the plunger g of the regulator G, permitting a freer circulation of the water in the motor, so that the piston will work more rapidly and therefore pump more air into the organ.

Should the valve e not be suficiently cushioned by the closing down of its recess e6 over the cone-shaped projections e7, itssliding movement may be regulated as desired by turning up the hand-screw c25, so as to check the outiiow of the exhaust from in front of the reciprocating valve.

while I have herein deeeribed in deben eine .embodiment of my invention in order that the same may be clearly apprehended, Iwish it understood that I am in no wise restricted to these details, inasmuch as various changes, substitutions,and other combinations of parts may be resorted to without departing from the spirit and scope of my invention, and also that while I have described my invention as particularly intendedl for and adapted to a pipe-organ it is also adapted for very many other uses, and therefore I do not restrict it to any particular use.

One extreme advantage of my invention resides in the convenience it affords for accommodating it to either h igh or low pressure `Water systems which may be found in different cities or villages.

As before explained, the cylinder C is removably secured in the water-column, (and it will be understood that the latter need not necessarily be a technical water-column, but may be any support,) so that if a high-pressure fiuid source is at hand a cylinder C of small cross-sectional area will be inserted, j,

havinga correspondingly small piston, whereas if a low-pressure system is at hand a cylinder Chaving correspondingly greater crosssectional area will be screwed or otherwise secured in place to accommodate a larger piston, as will be readily understood.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

IOO

l. A Huid-motor for pumping an organ, L

'said shoulder and at its lower end `below the same, and being provided adjacent its ends with ports, a piston reciprocable in said cylinder, and mechanism to operate said piston, substantially as described. i

3; A luid-motor,comprising a hollow watercolumn, having a central annular shoulder at its upper end, a cylinder held by and having threaded engagement with said shoulder, said cylinder extending at its upper end above said shoulder and at its lower end below the same, and being provided adjacent its ends with ports, the ends of said cylinder being open, and the adjacent ends of the water-column having projecting bosses overlapping said open ends with an annular space therebetween constituting auxiliary ports,

for the purpose specified, a piston reciprocable in said cylinder, and mechanism to operate saidpiston, substantially as described.

IIO

f4 VA609,133

4. A fluid-motor, comprising a water-column, having an internal annular shoulder adjacent one end, a cylinder mounted therein and extending at the opposite sides of said shoulder, said cylinder being provided with ports at its opposite ends, independent chambers in said water-column separated by said internal shoulder, a stand b2 mounted at one end of said water-column, a piston and piston-rod for said cylinder, a head carried by said rod and reciprocable in Ways provided therefor in said stand, said head having a bifurcated end, a twisted blade rotatably mounted parallel to said Ways and embraced on its opposite sides by said bifurcated end, a valve loosely connected to said blade to be interf mittingly rocked thereby, a slide-valve, a

valve-chamber therefor, said slide-valve being provided intermediate its endsI with cutoff shoulders and at its ends with cushioning devices, end recesses in said chamber receiving said cushioning ends of the Valve, passages from said end recesses to said rock- Valve adapted to be controlled thereby, a central outlet from said chamber, a passage connecting therewith from the rock-valve, and passages from said valve-chamber to the water-column, substantially as described.

5. A Huid-motor, comprising a Water-column, having an internal annular shoulder adjacent one end, a cylinder mounted therein and extending at the opposite sides of said shoulder, said cylinder being provided With ports at its opposite ends, independent chambers in said water-column separated by said internal shoulder, a stand b2 mounted at one end of said water-column, a piston and piston-rod for said cylinder, a head carried by said rod and reciprocable in ways provided therefor in said stand, said head having a bifurcated end, a twisted blade rotatably mounted parallel to said ways and embraced on its opposite sides by said bifurcated end, a valve loosely connected to said blade to be intermittingly rocked thereby, a slide-valve, a valve-chamber therefor, said slide-valve being provided intermediate its ends with cutoft' shoulders and at its ends with cushioning devices, end yrecesses in said chamber receiving said cushioning ends of the valve, passages from said end recesses to said rockvalve adapted to be controlled thereby, acentral outlet for said chamber, a passage connecting therewith from the rock-valve, passages from said valve-chamber to the watercolumn, a plunger controlling the outflow from said outlet, and means automatically operating said plunger, substantially as described.

6. A fluid-motor, comprising a water-column, having an internal annular shoulder adjacent one end, a cylinder mounted therein and extending at the opposite sides of said shoulder, said cylinder being provided with ports at its opposite ends, independent chambers in said water-column separated by said internal shoulder, a stand b2 mounted at one end of said water-column, a piston and piston-rod for said cylinder, a head carried by said rod and reciprocable in ways provided therefor in said stand, said head having a bifurcated end, a twisted blade rotatably mounted parallel to said ways and embraced on its opposite sides by said bifurcated end, a Valve loosely connected to said blade to be intermittingly rocked thereby, a slide-valve, a valve-chamber therefor, said slide-valve being provided intermediate its ends with cutoff shoulders and at its ends with cushioning devices, end recesses in said chamber receiving said cushioning ends of the valve, passages from said end recesses to said rock- Valve adapted to be controlled thereby, a central outlet from said chamber, a passage connecting therewith from the rock-valve, passages from said valve-chamber to the watercolumn, a plunger controlling the outflow from said outlet, means automatically operating said plunger, and a hand-plug between said plunger and the slide-valve for regulating the outflow from the rock-valve to said outlet, substantially as described.

7. In a fluid-motor, the herein -described loose connection for intermittingly operating the controlling-valve, in combinationfwith said controlling-valve, a slide-valve, ports from the latter, and passages between said valves, said loose connection comprising a twisted blade extending in alinement With the rotary valve, the latter having opposite lugs projecting therefrom, and the twisted blade having a pin extending transversely across its end between said lugs, the space between said lugs being greater than the width of said pin, a bifurcated head in sliding engagement with said blade,and means for reciprocating said head,substantially as described.

ln testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

THOMAS HAND WYKE.

Witnesses:

GEO. H. MAXWELL, JOHN C. EDWARDS. 

